单词	keep term
释义	keep term [网络] 保持期限
随便看	constant lead constant length field constant length shift method constant length system constant letter constant level constant-level balance constant-level balloon constant level balloon constant level carburettor constant level chart constant-level chart constant-level control constant level conversion constant-level conversion constant level filler constant-level head tank constant level head tank constant level lubrication constant-level lubrication constant level lubricator constant-level lubricator constant level oiler constant level regulator constant-level regulator 卓绝千古卓荦不羁卓荦超伦協单单1 单2 单3 单4 单丝不成线 07391 07392 07393 07394 07395 07396 07397 07398 58658 58659